1531980455 has 8 divisors (see below), whose sum is σ = 1839676992. Its totient is φ = 1224717408.

The previous prime is 1531980433. The next prime is 1531980473. The reversal of 1531980455 is 5540891351.

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

It is a cyclic number.

It is not a de Polignac number, because 1531980455 - 2⁶ = 1531980391 is a prime.

It is a super-2 number, since 2×1531980455² = 4693928229004014050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100544 + ... + 114773.

It is an arithmetic number, because the mean of its divisors is an integer number (229959624).

Almost surely, 2^1531980455 is an apocalyptic number.

1531980455 is a deficient number, since it is larger than the sum of its proper divisors (307696537).

1531980455 is a wasteful number, since it uses less digits than its factorization.

1531980455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216745.

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 1531980455 is about 39140.5219050538. The cubic root of 1531980455 is about 1152.7923209537.

The spelling of 1531980455 in words is "one billion, five hundred thirty-one million, nine hundred eighty thousand, four hundred fifty-five".