148838690 has 64 divisors (see below), whose sum is σ = 359735040. Its totient is φ = 42819840.

The previous prime is 148838687. The next prime is 148838693. The reversal of 148838690 is 96838841.

It is an interprime number because it is at equal distance from previous prime (148838687) and next prime (148838693).

It is a super-2 number, since 2×148838690² = 44305911281832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148838693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2576 + ... + 17444.

It is an arithmetic number, because the mean of its divisors is an integer number (5620860).

Almost surely, 2^148838690 is an apocalyptic number.

148838690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148838690 is an abundant number, since it is smaller than the sum of its proper divisors (210896350).

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

148838690 is a wasteful number, since it uses less digits than its factorization.

148838690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14907.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 148838690 is about 12199.9463113573. The cubic root of 148838690 is about 529.9545350818.

It can be divided in two parts, 148 and 838690, that added together give a palindrome (838838).

The spelling of 148838690 in words is "one hundred forty-eight million, eight hundred thirty-eight thousand, six hundred ninety".