1490161551 has 8 divisors (see below), whose sum is σ = 1996867200. Its totient is φ = 988448472.

The previous prime is 1490161531. The next prime is 1490161553. The reversal of 1490161551 is 1551610941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1490161551 - 2⁶ = 1490161487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490161553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247445 + ... + 1248638.

It is an arithmetic number, because the mean of its divisors is an integer number (249608400).

Almost surely, 2^1490161551 is an apocalyptic number.

1490161551 is a deficient number, since it is larger than the sum of its proper divisors (506705649).

1490161551 is a wasteful number, since it uses less digits than its factorization.

1490161551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496285.

The product of its (nonzero) digits is 5400, while the sum is 33.

The square root of 1490161551 is about 38602.6106759634. The cubic root of 1490161551 is about 1142.2060368567.

The spelling of 1490161551 in words is "one billion, four hundred ninety million, one hundred sixty-one thousand, five hundred fifty-one".