1245100152949 has 2 divisors, whose sum is σ = 1245100152950. Its totient is φ = 1245100152948.

The previous prime is 1245100152941. The next prime is 1245100152977. The reversal of 1245100152949 is 9492510015421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235421135025 + 9679017924 = 1111495^2 + 98382^2 .

It is an emirp because it is prime and its reverse (9492510015421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1245100152949 - 2³ = 1245100152941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245100152941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622550076474 + 622550076475.

It is an arithmetic number, because the mean of its divisors is an integer number (622550076475).

Almost surely, 2^{1245100152949} is an apocalyptic number.

It is an amenable number.

1245100152949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245100152949 is an equidigital number, since it uses as much as digits as its factorization.

1245100152949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 1245100152949 in words is "one trillion, two hundred forty-five billion, one hundred million, one hundred fifty-two thousand, nine hundred forty-nine".