151044551 has 4 divisors (see below), whose sum is σ = 172622352. Its totient is φ = 129466752.

The previous prime is 151044463. The next prime is 151044559. The reversal of 151044551 is 155440151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155440151 = 11923 ⋅13037.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151044551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151044551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151044559) 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, 10788890 + ... + 10788903.

It is an arithmetic number, because the mean of its divisors is an integer number (43155588).

Almost surely, 2^151044551 is an apocalyptic number.

151044551 is a deficient number, since it is larger than the sum of its proper divisors (21577801).

151044551 is an equidigital number, since it uses as much as digits as its factorization.

151044551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21577800.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 151044551 is about 12290.0183482369. The cubic root of 151044551 is about 532.5597672929.

The spelling of 151044551 in words is "one hundred fifty-one million, forty-four thousand, five hundred fifty-one".