101512 has 8 divisors (see below), whose sum is σ = 190350. Its totient is φ = 50752.

The previous prime is 101503. The next prime is 101513. The reversal of 101512 is 215101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 98596 + 2916 = 314^2 + 54^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×101512² = 20609372288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6337 + ... + 6352.

2¹⁰¹⁵¹² is an apocalyptic number.

It is an amenable number.

101512 is a deficient number, since it is larger than the sum of its proper divisors (88838).

101512 is a wasteful number, since it uses less digits than its factorization.

101512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695 (or 12691 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 101512 is about 318.6094788295. The cubic root of 101512 is about 46.6486551807.

Adding to 101512 its reverse (215101), we get a palindrome (316613).

It can be divided in two parts, 10151 and 2, that multiplied together give a palindrome (20302).

The spelling of 101512 in words is "one hundred one thousand, five hundred twelve".