1129725470 has 8 divisors (see below), whose sum is σ = 2033505864. Its totient is φ = 451890184.

The previous prime is 1129725469. The next prime is 1129725481. The reversal of 1129725470 is 745279211.

It is a happy number.

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

It is a super-3 number, since 3×1129725470³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56486264 + ... + 56486283.

It is an arithmetic number, because the mean of its divisors is an integer number (254188233).

Almost surely, 2^1129725470 is an apocalyptic number.

1129725470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1129725470 is a deficient number, since it is larger than the sum of its proper divisors (903780394).

1129725470 is a wasteful number, since it uses less digits than its factorization.

1129725470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112972554.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1129725470 is about 33611.3889924234. The cubic root of 1129725470 is about 1041.4960808944.

The spelling of 1129725470 in words is "one billion, one hundred twenty-nine million, seven hundred twenty-five thousand, four hundred seventy".