123761390 has 16 divisors (see below), whose sum is σ = 232456608. Its totient is φ = 47352096.

The previous prime is 123761389. The next prime is 123761399. The reversal of 123761390 is 93167321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123761399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268817 + ... + 269276.

It is an arithmetic number, because the mean of its divisors is an integer number (14528538).

Almost surely, 2^123761390 is an apocalyptic number.

123761390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123761390 is a deficient number, since it is larger than the sum of its proper divisors (108695218).

123761390 is a wasteful number, since it uses less digits than its factorization.

123761390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538123.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 123761390 is about 11124.8096612931. The cubic root of 123761390 is about 498.3430349996.

The spelling of 123761390 in words is "one hundred twenty-three million, seven hundred sixty-one thousand, three hundred ninety".