1255740146 has 8 divisors (see below), whose sum is σ = 1883760624. Its totient is φ = 627819940.

The previous prime is 1255740133. The next prime is 1255740149. The reversal of 1255740146 is 6410475521.

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

It is a super-2 number, since 2×1255740146² = 3153766628552202632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1255740149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35861 + ... + 61623.

It is an arithmetic number, because the mean of its divisors is an integer number (235470078).

Almost surely, 2^1255740146 is an apocalyptic number.

1255740146 is a deficient number, since it is larger than the sum of its proper divisors (628020478).

1255740146 is a wasteful number, since it uses less digits than its factorization.

1255740146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50136.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 1255740146 is about 35436.4240013013. The cubic root of 1255740146 is about 1078.8637300734.

The spelling of 1255740146 in words is "one billion, two hundred fifty-five million, seven hundred forty thousand, one hundred forty-six".