147046421 has 2 divisors, whose sum is σ = 147046422. Its totient is φ = 147046420.

The previous prime is 147046411. The next prime is 147046451. The reversal of 147046421 is 124640741.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146143921 + 902500 = 12089^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 147046421 - 2¹⁸ = 146784277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147046411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73523210 + 73523211.

It is an arithmetic number, because the mean of its divisors is an integer number (73523211).

Almost surely, 2^147046421 is an apocalyptic number.

It is an amenable number.

147046421 is a deficient number, since it is larger than the sum of its proper divisors (1).

147046421 is an equidigital number, since it uses as much as digits as its factorization.

147046421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 147046421 is about 12126.2698716464. The cubic root of 147046421 is about 527.8187569026.

The spelling of 147046421 in words is "one hundred forty-seven million, forty-six thousand, four hundred twenty-one".