157944653 has 2 divisors, whose sum is σ = 157944654. Its totient is φ = 157944652.

The previous prime is 157944649. The next prime is 157944713. The reversal of 157944653 is 356449751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99161764 + 58782889 = 9958^2 + 7667^2 .

It is a cyclic number.

It is not a de Polignac number, because 157944653 - 2² = 157944649 is a prime.

It is a super-2 number, since 2×157944653² = 49893026822580818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157944623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78972326 + 78972327.

It is an arithmetic number, because the mean of its divisors is an integer number (78972327).

Almost surely, 2^157944653 is an apocalyptic number.

It is an amenable number.

157944653 is a deficient number, since it is larger than the sum of its proper divisors (1).

157944653 is an equidigital number, since it uses as much as digits as its factorization.

157944653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 44.

The square root of 157944653 is about 12567.6033116899. The cubic root of 157944653 is about 540.5488851957.

The spelling of 157944653 in words is "one hundred fifty-seven million, nine hundred forty-four thousand, six hundred fifty-three".