1651485155 has 8 divisors (see below), whose sum is σ = 1990513872. Its totient is φ = 1315367008.

The previous prime is 1651485151. The next prime is 1651485181. The reversal of 1651485155 is 5515841561.

It is a happy number.

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 1651485155 - 2² = 1651485151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1651485151) 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, 726392 + ... + 728661.

It is an arithmetic number, because the mean of its divisors is an integer number (248814234).

Almost surely, 2^1651485155 is an apocalyptic number.

1651485155 is a deficient number, since it is larger than the sum of its proper divisors (339028717).

1651485155 is a wasteful number, since it uses less digits than its factorization.

1651485155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455285.

The product of its digits is 120000, while the sum is 41.

The square root of 1651485155 is about 40638.4689057056. The cubic root of 1651485155 is about 1182.0201808753.

The spelling of 1651485155 in words is "one billion, six hundred fifty-one million, four hundred eighty-five thousand, one hundred fifty-five".