126951390 has 24 divisors (see below), whose sum is σ = 330073848. Its totient is φ = 33853680.

The previous prime is 126951389. The next prime is 126951439. The reversal of 126951390 is 93159621.

126951390 is a `hidden beast` number, since 1 + 269 + 5 + 1 + 390 = 666.

It is a super-2 number, since 2×126951390² = 32233310845864200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705196 + ... + 705375.

It is an arithmetic number, because the mean of its divisors is an integer number (13753077).

Almost surely, 2^126951390 is an apocalyptic number.

126951390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126951390 is an abundant number, since it is smaller than the sum of its proper divisors (203122458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126951390 is a wasteful number, since it uses less digits than its factorization.

126951390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410584 (or 1410581 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 126951390 is about 11267.2707431747. The cubic root of 126951390 is about 502.5884302676.

It can be divided in two parts, 1269 and 51390, that multiplied together give a triangular number (65213910 = T₁₁₄₂₀).

The spelling of 126951390 in words is "one hundred twenty-six million, nine hundred fifty-one thousand, three hundred ninety".