151405123 has 2 divisors, whose sum is σ = 151405124. Its totient is φ = 151405122.

The previous prime is 151405103. The next prime is 151405187. The reversal of 151405123 is 321504151.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (321504151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151405123 is a prime.

It is a super-2 number, since 2×151405123² = 45847022541290258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151405094 and 151405103.

It is not a weakly prime, because it can be changed into another prime (151405103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75702561 + 75702562.

It is an arithmetic number, because the mean of its divisors is an integer number (75702562).

Almost surely, 2^151405123 is an apocalyptic number.

151405123 is a deficient number, since it is larger than the sum of its proper divisors (1).

151405123 is an equidigital number, since it uses as much as digits as its factorization.

151405123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 151405123 is about 12304.6789068224. The cubic root of 151405123 is about 532.9832042645.

Adding to 151405123 its reverse (321504151), we get a palindrome (472909274).

The spelling of 151405123 in words is "one hundred fifty-one million, four hundred five thousand, one hundred twenty-three".