157272007 has 2 divisors, whose sum is σ = 157272008. Its totient is φ = 157272006.

The previous prime is 157272001. The next prime is 157272019. The reversal of 157272007 is 700272751.

It is a weak prime.

It is an emirp because it is prime and its reverse (700272751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157272007 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157272007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157272001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78636003 + 78636004.

It is an arithmetic number, because the mean of its divisors is an integer number (78636004).

Almost surely, 2^157272007 is an apocalyptic number.

157272007 is a deficient number, since it is larger than the sum of its proper divisors (1).

157272007 is an equidigital number, since it uses as much as digits as its factorization.

157272007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 157272007 is about 12540.8136498395. The cubic root of 157272007 is about 539.7804400045.

The spelling of 157272007 in words is "one hundred fifty-seven million, two hundred seventy-two thousand, seven".