15501151 has 2 divisors, whose sum is σ = 15501152. Its totient is φ = 15501150.

The previous prime is 15501133. The next prime is 15501179. The reversal of 15501151 is 15110551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15501151 - 2⁵ = 15501119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15501121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7750575 + 7750576.

It is an arithmetic number, because the mean of its divisors is an integer number (7750576).

Almost surely, 2^15501151 is an apocalyptic number.

15501151 is a deficient number, since it is larger than the sum of its proper divisors (1).

15501151 is an equidigital number, since it uses as much as digits as its factorization.

15501151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 15501151 is about 3937.1501114385. The cubic root of 15501151 is about 249.3377190852.

It can be divided in two parts, 1550 and 1151, that added together give a triangular number (2701 = T₇₃).

The spelling of 15501151 in words is "fifteen million, five hundred one thousand, one hundred fifty-one".