100744157 has 4 divisors (see below), whose sum is σ = 100796700. Its totient is φ = 100691616.

The previous prime is 100744151. The next prime is 100744201. The reversal of 100744157 is 751447001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751447001 = 919 ⋅817679.

It can be written as a sum of positive squares in 2 ways, for example, as 75933796 + 24810361 = 8714^2 + 4981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100744157 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 (100744151) 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, 23282 + ... + 27267.

It is an arithmetic number, because the mean of its divisors is an integer number (25199175).

Almost surely, 2^100744157 is an apocalyptic number.

It is an amenable number.

100744157 is a deficient number, since it is larger than the sum of its proper divisors (52543).

100744157 is an equidigital number, since it uses as much as digits as its factorization.

100744157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52542.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 100744157 is about 10037.1388851605. The cubic root of 100744157 is about 465.3073960830.

The spelling of 100744157 in words is "one hundred million, seven hundred forty-four thousand, one hundred fifty-seven".