1155420510 has 32 divisors (see below), whose sum is σ = 2774034432. Its totient is φ = 307998240.

The previous prime is 1155420493. The next prime is 1155420527. The reversal of 1155420510 is 150245511.

It is an interprime number because it is at equal distance from previous prime (1155420493) and next prime (1155420527).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103627 + ... + 114233.

It is an arithmetic number, because the mean of its divisors is an integer number (86688576).

Almost surely, 2^1155420510 is an apocalyptic number.

1155420510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155420510 is an abundant number, since it is smaller than the sum of its proper divisors (1618613922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155420510 is a wasteful number, since it uses less digits than its factorization.

1155420510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14248.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1155420510 is about 33991.4770199825. The cubic root of 1155420510 is about 1049.3330639955. Note that the first 3 decimals are identical.

The spelling of 1155420510 in words is "one billion, one hundred fifty-five million, four hundred twenty thousand, five hundred ten".