101662157 has 4 divisors (see below), whose sum is σ = 102438336. Its totient is φ = 100885980.

The previous prime is 101662153. The next prime is 101662189. The reversal of 101662157 is 751266101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 751266101 = 953 ⋅788317.

It is a cyclic number.

It is not a de Polignac number, because 101662157 - 2² = 101662153 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 (101662151) 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, 387893 + ... + 388154.

It is an arithmetic number, because the mean of its divisors is an integer number (25609584).

Almost surely, 2^101662157 is an apocalyptic number.

It is an amenable number.

101662157 is a deficient number, since it is larger than the sum of its proper divisors (776179).

101662157 is an equidigital number, since it uses as much as digits as its factorization.

101662157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776178.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 101662157 is about 10082.7653448843. The cubic root of 101662157 is about 466.7164481474.

The spelling of 101662157 in words is "one hundred one million, six hundred sixty-two thousand, one hundred fifty-seven".