157028941 has 2 divisors, whose sum is σ = 157028942. Its totient is φ = 157028940.

The previous prime is 157028933. The next prime is 157028947. The reversal of 157028941 is 149820751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99420841 + 57608100 = 9971^2 + 7590^2 .

It is an emirp because it is prime and its reverse (149820751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157028941 - 2³ = 157028933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157028941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157028947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78514470 + 78514471.

It is an arithmetic number, because the mean of its divisors is an integer number (78514471).

Almost surely, 2^157028941 is an apocalyptic number.

It is an amenable number.

157028941 is a deficient number, since it is larger than the sum of its proper divisors (1).

157028941 is an equidigital number, since it uses as much as digits as its factorization.

157028941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 157028941 is about 12531.1189045512. The cubic root of 157028941 is about 539.5022173153.

The spelling of 157028941 in words is "one hundred fifty-seven million, twenty-eight thousand, nine hundred forty-one".