101380690 has 32 divisors (see below), whose sum is σ = 194431104. Its totient is φ = 37927680.

The previous prime is 101380663. The next prime is 101380691. The reversal of 101380690 is 96083101.

101380690 = 5² + 6² + ... + 672².

It is a happy number.

It is a super-2 number, since 2×101380690² = 20556088609752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101380691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26605 + ... + 30175.

It is an arithmetic number, because the mean of its divisors is an integer number (6075972).

Almost surely, 2^101380690 is an apocalyptic number.

101380690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101380690 is a deficient number, since it is larger than the sum of its proper divisors (93050414).

101380690 is a wasteful number, since it uses less digits than its factorization.

101380690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 101380690 is about 10068.7978428410. The cubic root of 101380690 is about 466.2853250889.

The spelling of 101380690 in words is "one hundred one million, three hundred eighty thousand, six hundred ninety".