40554157 has 4 divisors (see below), whose sum is σ = 46347616. Its totient is φ = 34760700.

The previous prime is 40554139. The next prime is 40554187. The reversal of 40554157 is 75145504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40554157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40554187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2896719 + ... + 2896732.

It is an arithmetic number, because the mean of its divisors is an integer number (11586904).

Almost surely, 2^40554157 is an apocalyptic number.

It is an amenable number.

40554157 is a deficient number, since it is larger than the sum of its proper divisors (5793459).

40554157 is an equidigital number, since it uses as much as digits as its factorization.

40554157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5793458.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 40554157 is about 6368.2145849524. The cubic root of 40554157 is about 343.5672769058.

The spelling of 40554157 in words is "forty million, five hundred fifty-four thousand, one hundred fifty-seven".