157426403 has 2 divisors, whose sum is σ = 157426404. Its totient is φ = 157426402.

The previous prime is 157426363. The next prime is 157426417. The reversal of 157426403 is 304624751.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157426403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157426403.

It is not a weakly prime, because it can be changed into another prime (157426303) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78713201 + 78713202.

It is an arithmetic number, because the mean of its divisors is an integer number (78713202).

Almost surely, 2^157426403 is an apocalyptic number.

157426403 is a deficient number, since it is larger than the sum of its proper divisors (1).

157426403 is an equidigital number, since it uses as much as digits as its factorization.

157426403 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 32.

The square root of 157426403 is about 12546.9678807272. The cubic root of 157426403 is about 539.9570187555.

The spelling of 157426403 in words is "one hundred fifty-seven million, four hundred twenty-six thousand, four hundred three".