139663419 has 32 divisors (see below), whose sum is σ = 220047360. Its totient is φ = 77127552.

The previous prime is 139663411. The next prime is 139663421. The reversal of 139663419 is 914366931.

It is not a de Polignac number, because 139663419 - 2³ = 139663411 is a prime.

It is a super-2 number, since 2×139663419² = 39011741213539122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139663411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133902 + ... + 134940.

It is an arithmetic number, because the mean of its divisors is an integer number (6876480).

Almost surely, 2^139663419 is an apocalyptic number.

139663419 is a deficient number, since it is larger than the sum of its proper divisors (80383941).

139663419 is a wasteful number, since it uses less digits than its factorization.

139663419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its digits is 104976, while the sum is 42.

The square root of 139663419 is about 11817.9278640547. The cubic root of 139663419 is about 518.8329584459.

The spelling of 139663419 in words is "one hundred thirty-nine million, six hundred sixty-three thousand, four hundred nineteen".