1255445146 has 16 divisors (see below), whose sum is σ = 1919427840. Its totient is φ = 615726160.

The previous prime is 1255445143. The next prime is 1255445171. The reversal of 1255445146 is 6415445521.

It is a super-2 number, since 2×1255445146² = 3152285029229922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1255445143) 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, 5535 + ... + 50413.

It is an arithmetic number, because the mean of its divisors is an integer number (119964240).

Almost surely, 2^1255445146 is an apocalyptic number.

1255445146 is a deficient number, since it is larger than the sum of its proper divisors (663982694).

1255445146 is a wasteful number, since it uses less digits than its factorization.

1255445146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45149.

The product of its digits is 96000, while the sum is 37.

The square root of 1255445146 is about 35432.2613729353. The cubic root of 1255445146 is about 1078.7792407977.

The spelling of 1255445146 in words is "one billion, two hundred fifty-five million, four hundred forty-five thousand, one hundred forty-six".