40157501 has 2 divisors, whose sum is σ = 40157502. Its totient is φ = 40157500.

The previous prime is 40157479. The next prime is 40157503. The reversal of 40157501 is 10575104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35117476 + 5040025 = 5926^2 + 2245^2 .

It is a cyclic number.

It is not a de Polignac number, because 40157501 - 2¹⁰ = 40156477 is a prime.

It is a super-2 number, since 2×40157501² = 3225249773130002, which contains 22 as substring.

Together with 40157503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40157503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078750 + 20078751.

It is an arithmetic number, because the mean of its divisors is an integer number (20078751).

Almost surely, 2^40157501 is an apocalyptic number.

It is an amenable number.

40157501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40157501 is an equidigital number, since it uses as much as digits as its factorization.

40157501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 40157501 is about 6336.9946346829. The cubic root of 40157501 is about 342.4434730091.

The spelling of 40157501 in words is "forty million, one hundred fifty-seven thousand, five hundred one".