1012403755 has 8 divisors (see below), whose sum is σ = 1325328624. Its totient is φ = 736293600.

The previous prime is 1012403729. The next prime is 1012403759. The reversal of 1012403755 is 5573042101.

It is a happy number.

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

It is not a de Polignac number, because 1012403755 - 2¹⁵ = 1012370987 is a prime.

It is a super-2 number, since 2×1012403755² = 2049922726276200050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012403759) 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, 9203616 + ... + 9203725.

It is an arithmetic number, because the mean of its divisors is an integer number (165666078).

Almost surely, 2^1012403755 is an apocalyptic number.

1012403755 is a deficient number, since it is larger than the sum of its proper divisors (312924869).

1012403755 is a wasteful number, since it uses less digits than its factorization.

1012403755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18407357.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1012403755 is about 31818.2927731832. The cubic root of 1012403755 is about 1004.1176070413.

Adding to 1012403755 its reverse (5573042101), we get a palindrome (6585445856).

The spelling of 1012403755 in words is "one billion, twelve million, four hundred three thousand, seven hundred fifty-five".