125429890 has 8 divisors (see below), whose sum is σ = 225773820. Its totient is φ = 50171952.

The previous prime is 125429867. The next prime is 125429903. The reversal of 125429890 is 98924521.

It can be written as a sum of positive squares in 2 ways, for example, as 124077321 + 1352569 = 11139^2 + 1163^2 .

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

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, 6271485 + ... + 6271504.

Almost surely, 2^125429890 is an apocalyptic number.

125429890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125429890 is a deficient number, since it is larger than the sum of its proper divisors (100343930).

125429890 is a wasteful number, since it uses less digits than its factorization.

125429890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542996.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 125429890 is about 11199.5486516198. The cubic root of 125429890 is about 500.5725308333.

The spelling of 125429890 in words is "one hundred twenty-five million, four hundred twenty-nine thousand, eight hundred ninety".