151253506 has 4 divisors (see below), whose sum is σ = 226880262. Its totient is φ = 75626752.

The previous prime is 151253503. The next prime is 151253549. The reversal of 151253506 is 605352151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140304025 + 10949481 = 11845^2 + 3309^2 .

It is not an unprimeable number, because it can be changed into a prime (151253503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37813375 + ... + 37813378.

Almost surely, 2^151253506 is an apocalyptic number.

151253506 is a deficient number, since it is larger than the sum of its proper divisors (75626756).

151253506 is an equidigital number, since it uses as much as digits as its factorization.

151253506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75626755.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 151253506 is about 12298.5164145925. The cubic root of 151253506 is about 532.8052351575.

It can be divided in two parts, 15 and 1253506, that added together give a palindrome (1253521).

The spelling of 151253506 in words is "one hundred fifty-one million, two hundred fifty-three thousand, five hundred six".