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120431149 is a prime number
BaseRepresentation
bin1110010110110…
…10001000101101
322101121112110221
413023122020231
5221312244044
615541131341
72661435136
oct713321055
9271545427
10120431149
1161a86783
12343b9b51
131bc48247
1411dccc8d
15a88d484
hex72da22d

120431149 has 2 divisors, whose sum is σ = 120431150. Its totient is φ = 120431148.

The previous prime is 120431137. The next prime is 120431161. The reversal of 120431149 is 941134021.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (120431137) and next prime (120431161).

It can be written as a sum of positive squares in only one way, i.e., 115670025 + 4761124 = 10755^2 + 2182^2 .

It is an emirp because it is prime and its reverse (941134021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120431149 - 25 = 120431117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120431849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60215574 + 60215575.

It is an arithmetic number, because the mean of its divisors is an integer number (60215575).

Almost surely, 2120431149 is an apocalyptic number.

It is an amenable number.

120431149 is a deficient number, since it is larger than the sum of its proper divisors (1).

120431149 is an equidigital number, since it uses as much as digits as its factorization.

120431149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 120431149 is about 10974.1126748362. The cubic root of 120431149 is about 493.8324337290.

The spelling of 120431149 in words is "one hundred twenty million, four hundred thirty-one thousand, one hundred forty-nine".