100540157 has 4 divisors (see below), whose sum is σ = 100655676. Its totient is φ = 100424640.

The previous prime is 100540151. The next prime is 100540163. The reversal of 100540157 is 751045001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (100540151) and next prime (100540163).

It can be written as a sum of positive squares in 2 ways, for example, as 82101721 + 18438436 = 9061^2 + 4294^2 .

It is a cyclic number.

It is not a de Polignac number, because 100540157 - 2¹⁰ = 100539133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100540151) 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, 56444 + ... + 58197.

It is an arithmetic number, because the mean of its divisors is an integer number (25163919).

Almost surely, 2^100540157 is an apocalyptic number.

It is an amenable number.

100540157 is a deficient number, since it is larger than the sum of its proper divisors (115519).

100540157 is an equidigital number, since it uses as much as digits as its factorization.

100540157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115518.

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

The square root of 100540157 is about 10026.9714769715. The cubic root of 100540157 is about 464.9931120111.

Adding to 100540157 its reverse (751045001), we get a palindrome (851585158).

The spelling of 100540157 in words is "one hundred million, five hundred forty thousand, one hundred fifty-seven".