157623629 has 2 divisors, whose sum is σ = 157623630. Its totient is φ = 157623628.

The previous prime is 157623619. The next prime is 157623649. The reversal of 157623629 is 926326751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114982729 + 42640900 = 10723^2 + 6530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157623629 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157623619) 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, 78811814 + 78811815.

It is an arithmetic number, because the mean of its divisors is an integer number (78811815).

Almost surely, 2^157623629 is an apocalyptic number.

It is an amenable number.

157623629 is a deficient number, since it is larger than the sum of its proper divisors (1).

157623629 is an equidigital number, since it uses as much as digits as its factorization.

157623629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 157623629 is about 12554.8249290860. The cubic root of 157623629 is about 540.1824132249.

It can be divided in two parts, 15762 and 3629, that added together give a palindrome (19391).

The spelling of 157623629 in words is "one hundred fifty-seven million, six hundred twenty-three thousand, six hundred twenty-nine".