1012153251 has 8 divisors (see below), whose sum is σ = 1350141520. Its totient is φ = 674466912.

The previous prime is 1012153229. The next prime is 1012153253. The reversal of 1012153251 is 1523512101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012153251 - 2²² = 1007958947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012153253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67540 + ... + 81153.

It is an arithmetic number, because the mean of its divisors is an integer number (168767690).

Almost surely, 2^1012153251 is an apocalyptic number.

1012153251 is a deficient number, since it is larger than the sum of its proper divisors (337988269).

1012153251 is a wasteful number, since it uses less digits than its factorization.

1012153251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150965.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1012153251 is about 31814.3560519461. The cubic root of 1012153251 is about 1004.0347823037.

Adding to 1012153251 its reverse (1523512101), we get a palindrome (2535665352).

The spelling of 1012153251 in words is "one billion, twelve million, one hundred fifty-three thousand, two hundred fifty-one".