126997332 has 48 divisors (see below), whose sum is σ = 369449472. Its totient is φ = 32986080.

The previous prime is 126997307. The next prime is 126997369. The reversal of 126997332 is 233799621.

Added to its reverse (233799621) it gives a triangular number (360796953 = T₂₆₈₆₂).

It is a super-2 number, since 2×126997332² = 32256644670236448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67798 + ... + 69645.

It is an arithmetic number, because the mean of its divisors is an integer number (7696864).

Almost surely, 2^126997332 is an apocalyptic number.

126997332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126997332 is an abundant number, since it is smaller than the sum of its proper divisors (242452140).

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

126997332 is a wasteful number, since it uses less digits than its factorization.

126997332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137468 (or 137466 counting only the distinct ones).

The product of its digits is 122472, while the sum is 42.

The square root of 126997332 is about 11269.3092956046. The cubic root of 126997332 is about 502.6490496194.

Adding to 126997332 its reverse (233799621), we get a triangular number (360796953 = T₂₆₈₆₂).

The spelling of 126997332 in words is "one hundred twenty-six million, nine hundred ninety-seven thousand, three hundred thirty-two".