151006531 has 4 divisors (see below), whose sum is σ = 162622432. Its totient is φ = 139390632.

The previous prime is 151006517. The next prime is 151006627. The reversal of 151006531 is 135600151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135600151 = 7297 ⋅18583.

It is a cyclic number.

It is not a de Polignac number, because 151006531 - 2²¹ = 148909379 is a prime.

It is a super-2 number, since 2×151006531² = 45605944809307922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151006501) 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, 5807931 + ... + 5807956.

It is an arithmetic number, because the mean of its divisors is an integer number (40655608).

Almost surely, 2^151006531 is an apocalyptic number.

151006531 is a deficient number, since it is larger than the sum of its proper divisors (11615901).

151006531 is a wasteful number, since it uses less digits than its factorization.

151006531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11615900.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 151006531 is about 12288.4714671923. The cubic root of 151006531 is about 532.5150793264.

Adding to 151006531 its reverse (135600151), we get a palindrome (286606682).

The spelling of 151006531 in words is "one hundred fifty-one million, six thousand, five hundred thirty-one".