153430399949 has 2 divisors, whose sum is σ = 153430399950. Its totient is φ = 153430399948.

The previous prime is 153430399907. The next prime is 153430399981. The reversal of 153430399949 is 949993034351.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119359885225 + 34070514724 = 345485^2 + 184582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153430399949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153430399349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76715199974 + 76715199975.

It is an arithmetic number, because the mean of its divisors is an integer number (76715199975).

Almost surely, 2^153430399949 is an apocalyptic number.

It is an amenable number.

153430399949 is a deficient number, since it is larger than the sum of its proper divisors (1).

153430399949 is an equidigital number, since it uses as much as digits as its factorization.

153430399949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14171760, while the sum is 59.

The spelling of 153430399949 in words is "one hundred fifty-three billion, four hundred thirty million, three hundred ninety-nine thousand, nine hundred forty-nine".