90449151 has 16 divisors (see below), whose sum is σ = 130744320. Its totient is φ = 55288800.

The previous prime is 90449137. The next prime is 90449171. The reversal of 90449151 is 15194409.

It is not a de Polignac number, because 90449151 - 2¹⁴ = 90432767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90449131) 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, 1791 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (8171520).

Almost surely, 2^90449151 is an apocalyptic number.

90449151 is a deficient number, since it is larger than the sum of its proper divisors (40295169).

90449151 is a wasteful number, since it uses less digits than its factorization.

90449151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15526.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 90449151 is about 9510.4758556026. The cubic root of 90449151 is about 448.8847295790.

The spelling of 90449151 in words is "ninety million, four hundred forty-nine thousand, one hundred fifty-one".