151220751 has 16 divisors (see below), whose sum is σ = 225324288. Its totient is φ = 89412800.

The previous prime is 151220749. The next prime is 151220777. The reversal of 151220751 is 157022151.

It is not a de Polignac number, because 151220751 - 2¹ = 151220749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151220051) 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, 54531 + ... + 57236.

It is an arithmetic number, because the mean of its divisors is an integer number (14082768).

Almost surely, 2^151220751 is an apocalyptic number.

151220751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

151220751 is a deficient number, since it is larger than the sum of its proper divisors (74103537).

151220751 is a wasteful number, since it uses less digits than its factorization.

151220751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111822.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 151220751 is about 12297.1846778033. The cubic root of 151220751 is about 532.7667714862.

The spelling of 151220751 in words is "one hundred fifty-one million, two hundred twenty thousand, seven hundred fifty-one".