157454213933 has 2 divisors, whose sum is σ = 157454213934. Its totient is φ = 157454213932.

The previous prime is 157454213923. The next prime is 157454213951. The reversal of 157454213933 is 339312454751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131361303844 + 26092910089 = 362438^2 + 161533^2 .

It is an emirp because it is prime and its reverse (339312454751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157454213933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157454213923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78727106966 + 78727106967.

It is an arithmetic number, because the mean of its divisors is an integer number (78727106967).

Almost surely, 2^157454213933 is an apocalyptic number.

It is an amenable number.

157454213933 is a deficient number, since it is larger than the sum of its proper divisors (1).

157454213933 is an equidigital number, since it uses as much as digits as its factorization.

157454213933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 47.

The spelling of 157454213933 in words is "one hundred fifty-seven billion, four hundred fifty-four million, two hundred thirteen thousand, nine hundred thirty-three".