151155232477 has 4 divisors (see below), whose sum is σ = 151156070656. Its totient is φ = 151154394300.

The previous prime is 151155232441. The next prime is 151155232637. The reversal of 151155232477 is 774232551151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 774232551151 = 184003 ⋅4207717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151155232477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151155232177) 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, 25149 + ... + 550402.

It is an arithmetic number, because the mean of its divisors is an integer number (37789017664).

Almost surely, 2^151155232477 is an apocalyptic number.

It is an amenable number.

151155232477 is a deficient number, since it is larger than the sum of its proper divisors (838179).

151155232477 is an equidigital number, since it uses as much as digits as its factorization.

151155232477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838178.

The product of its digits is 294000, while the sum is 43.

The spelling of 151155232477 in words is "one hundred fifty-one billion, one hundred fifty-five million, two hundred thirty-two thousand, four hundred seventy-seven".