157248029 has 2 divisors, whose sum is σ = 157248030. Its totient is φ = 157248028.

The previous prime is 157248023. The next prime is 157248037. The reversal of 157248029 is 920842751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156825529 + 422500 = 12523^2 + 650^2 .

It is an emirp because it is prime and its reverse (920842751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157248029 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157247983 and 157248001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157248023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78624014 + 78624015.

It is an arithmetic number, because the mean of its divisors is an integer number (78624015).

Almost surely, 2^157248029 is an apocalyptic number.

It is an amenable number.

157248029 is a deficient number, since it is larger than the sum of its proper divisors (1).

157248029 is an equidigital number, since it uses as much as digits as its factorization.

157248029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 157248029 is about 12539.8576148216. The cubic root of 157248029 is about 539.7530066138.

The spelling of 157248029 in words is "one hundred fifty-seven million, two hundred forty-eight thousand, twenty-nine".